Cześć ;-)
Obliczenia
[tex]-\dfrac{7}{10}+(-\dfrac{3}{4})=-\dfrac{\boxed{14}}{20}-\dfrac{\boxed{15}}{20}=-\dfrac{29}{20}=\boxed{-1}\dfrac{\boxed9}{20}\\\\\\:)[/tex]
Pozdrawiam!
